Incandescent gas-mantle.



67. ILLUMINATING BURNERS, M

Gaseous fucl burners,

:3 Incandescent, Mantle support,

lnvcrted.

No. 818,032. PATENTED APR,.17, 1906. M. KOBLENZER. INGANDESGBNT GAS MANTLE.

APPLICATION FILED APR. 29. 1905.

.,; UNITED STATES PATiinti" OFFICE.

MARTIN KOBLENZER, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOR TO WELSBAOH LIGHT COMPANY, OF GLOUCESTER CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented April 17, 1996.

Application filed April 29, 1905. Serial No. 263.089-

To all whom, it may concern:

1 and the further and highly important purpose Be it known that I, MARTIN KOBLENZER, a l of maintaining the mantle in contact with subject of the Emperor of Austria-Hungary, residing in Vienna, Austria-Hungary, have invented certain new and useful Improvements in Incandescent Gas-Mantles, of which the following is a specification, reference being had to the drawings accompanying and forming part of the same.

My invention has for its object to provide an incandescent gas mantle which can be used for lighting in places-such as railway cars, bridges, &c.-where it has heretofore been impossible owing to the severe charac ter of the service. For this purpose I find that a small mantle is the most desirable, as it may be made stronger; but in order to get the necessary amount of illumination from such a small mantle it is desirable to invert it, thereby encountering new difiiculties, which I have solved by providing a protecting and surrounding bas et or cage, as shown in the drawings, in which Figure 1 is a perspective view of a mantle embodying my invention. Fig. 2 is a vertical central cross-section, and Fig. 3 is a plan vliew looking up from the bottom of ti mant e.

4 is the inverted mantle, which is attached to the holder 5 in any desired manner, preferably, however, directly attached thereto, which holder is provided with a central opening to permit the heating-flame to bring the mantle to incandescence. A convenient form of holder is illustrated in the drawings and comprises an annular base having a series of radial rectangular arms connected at their lower extremities by a second annulus concentric with the base and rovided with a peripheral groove engaged y the ed e of the mantle 4 to support said mantle. T also attach to the holder 5 a basket or cage 6 in such a manner as to surround and envelop the mantle without coming in contact therewith, and com osed of any material which will withstan the heat of the Bunsen flame, E referably a thin wire covered with asbestos.

his latter material is strong and durable and may be fine enough so as not to interfere to any appreciable extent with the lightrays from the mantle. This surrounding basket or cage 6 serves the purpose of protecting the mantle when it is being handled the flame from the Bunsen burner should it happen to become detached from the holder or reak. This latter function is highly important, because the mantle is used as an inverted mantle, and if such additional precaution were not taken the least fracture in the mantle would cause the entire mantle to drop away from the heating-flame, and thus put out the light.

The basket or cage 6 may be conveniently constructed of a series of longitudinal filaments united at a central oint at the bottom and secured to an upper iiIamental ring surrounding the base 5, certain of the lon itudinal filaments bein prolonged beyon their attachment with t e ring and bent in hook form to pass over the base of the holder to securely support the cage or basket in proper relation with respect to the mantle.

Having described my invention, what I claim is- 1. The combination of an inverted incandescent gas-mantle and a surrounding cage out of contact with the mantle to protect the same, substantially as described.

2. The combination of an inverted gasmantle directly attached to a holder therefor and a surroundin cage also attached to said holder and out of contact with the mantle, substantially as described.

3. The combination of an inverted incandescent gas-mantle mounted on a holder therefor and a cage surroundin the mantle, but out of contact therewith, su stantially as described.

4. The combination of an inverted incandescent gas-mantle and a cage of refractory material surrounding and out of contact with the mantle for protecting the same, substantially as described.

5. The combination of an inverted incandescent gas-mantle and a cage of refractory material surrounding the same, said cage comprising a series of filaments united at a common point, and a ring to which said filaments are attached, said cage bein out of contact with the mantle; substantial y as described.

6. The combination of an inverted incandescent gas-mantle, a holder therefor comprising two concentric connected annuli, and

a cage of refractory material surrounding hooked extensions on certain of said filasaid mantle and connected to said holder; ments engaging the annular base; substansubstantially as described. tially as described.

7. The combination of an inverted incan- In witness whereof I have hereunto set my 5 descent gas-mantle, a holder therefor comhand, in the presence of two Witnesses, this 1 5 prising an annular base and a second annulus 2d day of May, in the year 1904. connected to said base, and a cage of refrac- MARTIN KOBLENZER. tory material surrounding the mantle, said cage comprising a series of centrally-connect- 10 ed filaments, a ring secured thereto, and

Witnesses:

HILLARY O. MEssIMER, C. L. MATTHEWS. 

